Add HintIconMessage, FourthNpcActionMessage, and FifthNpcActionMessage.

src/org/apollo/game/message/impl/FifthNpcActionMessage.java

@@ -0,0 +1,19 @@
+package org.apollo.game.message.impl;
+
+/**
+ * The fifth {@link NpcActionMessage}.
+ * 
+ * @author Major
+ */
+public final class FifthNpcActionMessage extends NpcActionMessage {
+
+	/**
+	 * Creates a new fifth npc action message.
+	 * 
+	 * @param index The index of the npc.
+	 */
+	public FifthNpcActionMessage(int index) {
+		super(5, index);
+	}
+
+}

src/org/apollo/game/message/impl/FourthNpcActionMessage.java

@@ -0,0 +1,19 @@
+package org.apollo.game.message.impl;
+
+/**
+ * The fourth {@link NpcActionMessage}.
+ * 
+ * @author Major
+ */
+public final class FourthNpcActionMessage extends NpcActionMessage {
+
+	/**
+	 * Creates a new fourth npc action message.
+	 * 
+	 * @param index The index of the npc.
+	 */
+	public FourthNpcActionMessage(int index) {
+		super(4, index);
+	}
+
+}

src/org/apollo/game/message/impl/HintIconMessage.java

@@ -0,0 +1,102 @@
+package org.apollo.game.message.impl;
+
+import java.util.Optional;
+
+import org.apollo.game.message.Message;
+import org.apollo.game.model.Position;
+
+/**
+ * A {@link Message} that displays a hint icon over an Npc, tile, or player.
+ *
+ * @author Major
+ */
+public final class HintIconMessage extends Message {
+
+	// TODO identify the other types and use an enum.
+
+	/**
+	 * The hint icon type for Npcs.
+	 */
+	public static final int NPC_TYPE = 1;
+
+	/**
+	 * The hint icon type for Players.
+	 */
+	public static final int PLAYER_TYPE = 10;
+
+	/**
+	 * Creates a HintIconMessage for the Npc with the specified index.
+	 * 
+	 * @param index The index of the Npc.
+	 * @return The HintIconMessage.
+	 */
+	public static HintIconMessage forNpc(int index) {
+		return new HintIconMessage(NPC_TYPE, Optional.of(index), Optional.empty());
+	}
+
+	/**
+	 * Creates a HintIconMessage for the Player with the specified index.
+	 * 
+	 * @param index The index of the Player.
+	 * @return The HintIconMessage.
+	 */
+	public static HintIconMessage forPlayer(int index) {
+		return new HintIconMessage(PLAYER_TYPE, Optional.of(index), Optional.empty());
+	}
+
+	/**
+	 * The index of the entity, if applicable.
+	 */
+	private final Optional<Integer> index;
+
+	/**
+	 * The Position of the tile, if applicable.
+	 */
+	private final Optional<Position> position;
+
+	/**
+	 * The type of entity this HintIconMessage is directed at.
+	 */
+	private final int type;
+
+	/**
+	 * Creates the HintIconMessage.
+	 *
+	 * @param type The type of entity this HintIconMessage is directed at.
+	 * @param index The index of the entity, if applicable.
+	 * @param position The Position of the tile, if applicable.
+	 */
+	private HintIconMessage(int type, Optional<Integer> index, Optional<Position> position) {
+		this.type = type;
+		this.index = index;
+		this.position = position;
+	}
+
+	/**
+	 * Gets the index of the entity, if applicable.
+	 *
+	 * @return The index.
+	 */
+	public Optional<Integer> getIndex() {
+		return index;
+	}
+
+	/**
+	 * Gets the {@link Position} of the tile, if applicable.
+	 *
+	 * @return The Position.
+	 */
+	public Optional<Position> getPosition() {
+		return position;
+	}
+
+	/**
+	 * Gets the type this HintIconMessage is directed at.
+	 *
+	 * @return The type.
+	 */
+	public int getType() {
+		return type;
+	}
+
+}

src/org/apollo/net/release/r317/HintIconMessageEncoder.java

@@ -0,0 +1,34 @@
+package org.apollo.net.release.r317;
+
+import org.apollo.game.message.impl.HintIconMessage;
+import org.apollo.net.codec.game.DataType;
+import org.apollo.net.codec.game.GamePacket;
+import org.apollo.net.codec.game.GamePacketBuilder;
+import org.apollo.net.release.MessageEncoder;
+
+/**
+ * A {@link MessageEncoder} for the {@link HintIconMessage}.
+ *
+ * @author Major
+ */
+public final class HintIconMessageEncoder extends MessageEncoder<HintIconMessage> {
+
+	@Override
+	public GamePacket encode(HintIconMessage message) {
+		GamePacketBuilder builder = new GamePacketBuilder(254);
+		int type = message.getType();
+		builder.put(DataType.BYTE, type);
+
+		switch (type) {
+			case HintIconMessage.NPC_TYPE:
+			case HintIconMessage.PLAYER_TYPE:
+				builder.put(DataType.SHORT, message.getIndex().get());
+				break;
+			default:
+				throw new IllegalStateException("Unsupported hint icon type " + type + ".");
+		}
+
+		return builder.toGamePacket();
+	}
+
+}

src/org/apollo/net/release/r317/Release317.java

@@ -9,6 +9,7 @@ import org.apollo.game.message.impl.DisplayTabInterfaceMessage;
 import org.apollo.game.message.impl.EnterAmountMessage;
 import org.apollo.game.message.impl.ForwardPrivateChatMessage;
 import org.apollo.game.message.impl.FriendServerStatusMessage;
+import org.apollo.game.message.impl.HintIconMessage;
 import org.apollo.game.message.impl.IdAssignmentMessage;
 import org.apollo.game.message.impl.IgnoreListMessage;
 import org.apollo.game.message.impl.LogoutMessage;
@@ -145,6 +146,7 @@ public final class Release317 extends Release {
 		register(155, new FirstNpcActionMessageDecoder());
 		register(17, new SecondNpcActionMessageDecoder());
 		register(21, new ThirdNpcActionMessageDecoder());
+		
 		register(236, new TakeTileItemMessageDecoder());
 		register(192, new ItemOnObjectMessageDecoder());
 
@@ -201,6 +203,7 @@ public final class Release317 extends Release {
 		register(FriendServerStatusMessage.class, new FriendServerStatusMessageEncoder());
 		register(IgnoreListMessage.class, new IgnoreListMessageEncoder());
 		register(SendFriendMessage.class, new SendFriendMessageEncoder());
+		register(HintIconMessage.class, new HintIconMessageEncoder());
 	}
 
 }

src/org/apollo/net/release/r377/HintIconMessageEncoder.java

@@ -0,0 +1,34 @@
+package org.apollo.net.release.r377;
+
+import org.apollo.game.message.impl.HintIconMessage;
+import org.apollo.net.codec.game.DataType;
+import org.apollo.net.codec.game.GamePacket;
+import org.apollo.net.codec.game.GamePacketBuilder;
+import org.apollo.net.release.MessageEncoder;
+
+/**
+ * A {@link MessageEncoder} for the {@link HintIconMessage}.
+ *
+ * @author Major
+ */
+public final class HintIconMessageEncoder extends MessageEncoder<HintIconMessage> {
+
+	@Override
+	public GamePacket encode(HintIconMessage message) {
+		GamePacketBuilder builder = new GamePacketBuilder(199);
+		int type = message.getType();
+		builder.put(DataType.BYTE, type);
+
+		switch (type) {
+			case HintIconMessage.NPC_TYPE:
+			case HintIconMessage.PLAYER_TYPE:
+				builder.put(DataType.SHORT, message.getIndex().get());
+				break;
+			default:
+				throw new IllegalStateException("Unsupported hint icon type " + type + ".");
+		}
+
+		return builder.toGamePacket();
+	}
+
+}

src/org/apollo/net/release/r377/Release377.java

@@ -9,6 +9,7 @@ import org.apollo.game.message.impl.DisplayTabInterfaceMessage;
 import org.apollo.game.message.impl.EnterAmountMessage;
 import org.apollo.game.message.impl.ForwardPrivateChatMessage;
 import org.apollo.game.message.impl.FriendServerStatusMessage;
+import org.apollo.game.message.impl.HintIconMessage;
 import org.apollo.game.message.impl.IdAssignmentMessage;
 import org.apollo.game.message.impl.IgnoreListMessage;
 import org.apollo.game.message.impl.LogoutMessage;
@@ -19,8 +20,8 @@ import org.apollo.game.message.impl.OpenInterfaceSidebarMessage;
 import org.apollo.game.message.impl.PlayerSynchronizationMessage;
 import org.apollo.game.message.impl.PositionMessage;
 import org.apollo.game.message.impl.PrivacyOptionMessage;
-import org.apollo.game.message.impl.SectorChangeMessage;
 import org.apollo.game.message.impl.RemoveTileItemMessage;
+import org.apollo.game.message.impl.SectorChangeMessage;
 import org.apollo.game.message.impl.SendFriendMessage;
 import org.apollo.game.message.impl.SendObjectMessage;
 import org.apollo.game.message.impl.ServerChatMessage;
@@ -40,6 +41,7 @@ import org.apollo.game.message.impl.UpdateTileItemMessage;
 import org.apollo.game.message.impl.UpdateWeightMessage;
 import org.apollo.net.meta.PacketMetaDataGroup;
 import org.apollo.net.release.Release;
+import org.apollo.net.release.r317.HintIconMessageEncoder;
 
 /**
  * A {@link Release} implementation for the 377 protocol.
@@ -128,7 +130,7 @@ public final class Release377 extends Release {
 		register(36, new MagicOnItemMessageDecoder());
 
 		register(187, new FocusUpdateMessageDecoder());
-        register(19, new MouseClickedMessageDecoder());
+		register(19, new MouseClickedMessageDecoder());
 		register(171, new FlaggedMouseEventMessageDecoder());
 		register(140, new ArrowKeyMessageDecoder());
 		register(176, new PrivacyOptionMessageDecoder());
@@ -196,6 +198,7 @@ public final class Release377 extends Release {
 		register(FriendServerStatusMessage.class, new FriendServerStatusMessageEncoder());
 		register(IgnoreListMessage.class, new IgnoreListMessageEncoder());
 		register(SendFriendMessage.class, new SendFriendMessageEncoder());
+		register(HintIconMessage.class, new HintIconMessageEncoder());
 	}
 
 }